/* wf_j0.c -- float version of w_j0.c.
 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
 */

/*
 * ====================================================
 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
 *
 * Developed at SunPro, a Sun Microsystems, Inc. business.
 * Permission to use, copy, modify, and distribute this
 * software is freely granted, provided that this notice
 * is preserved.
 * ====================================================
 */

/*
 * wrapper j0f(float x), y0f(float x)
 */

#include "fdlibm.h"
#include <errno.h>

#ifdef __STDC__
    float j0f(float x)      /* wrapper j0f */
#else
    float j0f(x)            /* wrapper j0f */
    float x;
#endif
{
#ifdef _IEEE_LIBM
    return __ieee754_j0f(x);
#else
    struct exception exc;
    float z = __ieee754_j0f(x);
    if(_LIB_VERSION == _IEEE_ || isnan(x)) return z;
    if(fabsf(x)>(float)X_TLOSS) {
        /* j0f(|x|>X_TLOSS) */
            exc.type = TLOSS;
            exc.name = "j0f";
        exc.err = 0;
        exc.arg1 = exc.arg2 = (double)x;
            exc.retval = 0.0;
            if (_LIB_VERSION == _POSIX_)
               Djy_SaveLastError(ERANGE);
            else if (!matherr(&exc)) {
               Djy_SaveLastError(ERANGE);
            }
        if (exc.err != 0)
           Djy_SaveLastError(exc.err);
            return (float)exc.retval;
    } else
        return z;
#endif
}

#ifdef __STDC__
    float y0f(float x)      /* wrapper y0f */
#else
    float y0f(x)            /* wrapper y0f */
    float x;
#endif
{
#ifdef _IEEE_LIBM
    return __ieee754_y0f(x);
#else
    float z;
    struct exception exc;
    z = __ieee754_y0f(x);
    if(_LIB_VERSION == _IEEE_ || isnan(x) ) return z;
        if(x <= (float)0.0){
#ifndef HUGE_VAL
#define HUGE_VAL inf
        double inf = 0.0;

        SET_HIGH_WORD(inf,0x7ff00000);  /* set inf to infinite */
#endif
        /* y0f(0) = -inf  or y0f(x<0) = NaN */
        exc.type = DOMAIN;  /* should be SING for IEEE y0f(0) */
        exc.name = "y0f";
        exc.err = 0;
        exc.arg1 = exc.arg2 = (double)x;
        if (_LIB_VERSION == _SVID_)
           exc.retval = -HUGE;
        else
           exc.retval = -HUGE_VAL;
        if (_LIB_VERSION == _POSIX_)
           Djy_SaveLastError(EDOM);
        else if (!matherr(&exc)) {
           Djy_SaveLastError(EDOM);
        }
        if (exc.err != 0)
           Djy_SaveLastError(exc.err);
            return (float)exc.retval;
        }
    if(x>(float)X_TLOSS) {
        /* y0f(x>X_TLOSS) */
            exc.type = TLOSS;
            exc.name = "y0f";
        exc.err = 0;
        exc.arg1 = exc.arg2 = (double)x;
            exc.retval = 0.0;
            if (_LIB_VERSION == _POSIX_)
                Djy_SaveLastError(ERANGE);
            else if (!matherr(&exc)) {
                Djy_SaveLastError(ERANGE);
            }
        if (exc.err != 0)
           Djy_SaveLastError(exc.err);
            return (float)exc.retval;
    } else
        return z;
#endif
}

#ifdef _DOUBLE_IS_32BITS

#ifdef __STDC__
    double j0(double x)
#else
    double j0(x)
    double x;
#endif
{
    return (double) j0f((float) x);
}

#ifdef __STDC__
    double y0(double x)
#else
    double y0(x)
    double x;
#endif
{
    return (double) y0f((float) x);
}

#endif /* defined(_DOUBLE_IS_32BITS) */
